Lighting device



FIG. 1 is a front, top and side environmental perspective view of a lighting device, showing our new design;

FIG. 2 is a rear, second side and bottom environmental perspective view thereof;

FIG. 3 is a front, top and side perspective view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a side view thereof;

FIG. 9 is a second side view thereof; and,

FIG. 10 is a rear view thereof.

The broken line showing is superimposed on the continuous surface of the claimed design, is for illustrative purposes only, and forms no part of the claimed design. 

We claim the ornamental design for a lighting device, as shown and described. 